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How can I return an empty IEnumerable?

Given the following code and the suggestions given in this question , I've decided to modify this original method and ask if there are any values in the IEnumarable return it, if not return an IEnumerable with no values. ...
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How to go to each directory and execute a command?

How do I write a bash script that goes through each directory inside a parent_directory and executes a command in each directory . ...
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How do I determine the size of my array in C?

How do I determine the size of my array in C? 22 Answers 22 ...
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How do you make lettered lists using markdown?

Markdown allows ordered lists using numbers. How can I instead get an ordered list using letters ? i.e. 5 Answers ...
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Git production/staging server workflow

Currently my website (production server) already have a lot of code in it. And now I want to start using Git for my projects and setup a staging server for my team. Can anybody give me any advise? ...
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What is the difference between object keys with quotes and without quotes?

Is there any difference between 5 Answers 5 ...
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How to negate the whole regex?

I have a regex, for example (ma|(t){1}) . It matches ma and t and doesn't match bla . 4 Answers ...
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Renaming or copying files and folder using NERDTree on Vim. Is it possible?

I checked the documentation and I couldn't find a way o renaming or copying files and folder using NERDTree. Is it possible? ...
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What is the best way to detect a mobile device?

Is there a way to detect whether or not a user is using a mobile device in jQuery? Something similar to the CSS @media attribute? I would like to run a different script if the browser is on a handheld device. ...
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How to merge two files line by line in Bash

I have two text files, each of them contains an information by line such like that 4 Answers ...